DC7KM — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO62

Receiver-side FT8 activity involving DC7KM, decoded by SO8OO in southeastern Poland. 862 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 36 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 862 FT8 messages attributed to DC7KM as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (43%), followed by 80 m (28%) and 40 m (17%). Most decodes (84%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +7 dB.

Overview

862

Messages attributed

UTC dates decoded

109

Active 15-min windows

+7 dB

Estimated median S/N

Bands

80m · 239 60m · 371 40m · 148 20m · 51 10m · 53

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 21:38 UTC

Observed FT8 message patterns

Attributed sample: 862 messages
Active dates: 36 UTC dates
Estimated median S/N: +7 dB
Estimated 10th-90th percentile: -10.8 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 757.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DC7KM in decoded directed-looking exchanges:

EC3A · Spain ×2 HA1BF · Hungary ×2 DL2YMG · Fed. Rep. of Germany ×2 VE1YX · Canada ×2 IZ2ODN · Italy ×2 SM7TZK · Sweden ×2 A61FJ · United Arab Emirates EA7R · Spain EB5FMC · Spain EC1D · Spain F5RGB · France F6ARS · France

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to DC7KM

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JO62 · 340 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-10-22 21:37 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	DC7KM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 21:37	80m	+16 / +8	HB9EXN	+2 / -4	5	✓ Full exchange observed
10-22 21:34	80m	+14 / +3	SM7TZK	0 / +3	6	✓ Full exchange observed
10-22 21:32	80m	+16 / -9	F1PBZ	+17 / +6	4	✓ Full exchange observed
10-22 21:25	80m	+11 / -	W1MK	- / -	3	Partial capture
10-22 21:12	80m	+8 / -	SP1RKT	- / -2	2	Partial capture
10-22 21:09	80m	+13 / -7	DK8HC	0 / -	4	✓ Closing observed
10-22 20:41	60m	- / -	G0ABI	+1 / -	3	✓ Closing fragment
10-22 20:25	60m	-21 / +10	EG46PPA	-16 / -	2	Partial capture
10-22 20:22	60m	- / -4	IK3FHW	-12 / -	2	✓ Closing fragment
10-22 20:20	60m	-11 / -16	G4DBW	+6 / -	3	✓ Closing observed
10-17 20:03	60m	+8 / -	F4LSG	- / -6	2	✓ Closing fragment
10-17 20:01	60m	-3 / 0	F1IQH	-8 / +4	5	✓ Full exchange observed
10-17 19:57	60m	+6 / +8	SP2EWQ	-7 / -3	3	✓ Full exchange observed
10-17 19:56	60m	+11 / -	T77RN	-10 / -16	3	✓ Closing observed
10-10 22:26	80m	+5 / -	M3VNI	- / -	2	Partial capture
10-10 22:18	80m	-1 / -1	YO3AI	+2 / -2	5	✓ Full exchange observed
10-10 22:14	80m	+6 / -11	EC5M	-5 / -6	5	✓ Full exchange observed
10-10 22:12	80m	-1 / +9	F4BND	-16 / -1	5	✓ Full exchange observed
10-10 22:10	80m	- / -1	OE1PHS	-3 / -	2	Partial capture
10-10 22:09	80m	-2 / -	SP9TBT	- / -	2	✓ Closing fragment
10-10 22:07	80m	-2 / +3	R6HV	-6 / +2	4	✓ Full exchange observed
10-10 22:01	80m	+1 / 0	PE9JAN	+12 / +10	4	✓ Full exchange observed
10-10 21:59	80m	-14 / +4	IZ2ODN	-2 / +6	4	✓ Full exchange observed
10-10 21:43	60m	- / -2	EA5IY	-10 / -	2	✓ Closing fragment
10-10 20:08	60m	-10 / -	F6BQG	-15 / +4	4	✓ Full exchange observed
10-09 20:47	40m	-13 / -	RZ4FWA	- / -15	2	✓ Closing fragment
10-09 20:45	40m	-4 / -	G4BHE	- / +2	2	✓ Closing fragment
10-07 20:17	40m	- / +6	MW0USK	-2 / -	2	✓ Closing fragment
10-06 20:09	60m	+3 / -	OK1BN	+12 / +10	5	✓ Full exchange observed
10-06 20:07	60m	+10 / +1	G3RLX	-6 / -2	5	✓ Full exchange observed
10-06 20:05	60m	0 / -	ON7VZ	- / +4	2	Partial capture
10-03 21:36	60m	-19 / -1	F4AGZ	-6 / -6	4	✓ Full exchange observed
10-03 21:32	60m	-19 / +1	F1HFP	-10 / +9	5	✓ Full exchange observed
10-03 21:30	60m	-17 / -	F1LZV	- / -6	3	✓ Closing fragment
10-03 21:19	60m	+7 / -	CU2AP	- / -9	3	✓ Closing fragment
10-03 21:16	60m	-6 / -	IU4UWH	- / -4	3	✓ Closing fragment
10-03 21:14	60m	+4 / -12	SP9MRP	-20 / -	3	Partial capture
10-03 21:13	60m	-2 / +2	YL2SW	+1 / +10	4	✓ Full exchange observed
10-03 21:11	60m	-2 / -2	EA4EJR	-17 / -5	4	✓ Full exchange observed
10-03 21:09	60m	+2 / -	4X5EF	- / -	2	Partial capture
10-03 21:06	60m	+2 / -	4X5EF	- / -	2	Partial capture
10-03 21:05	60m	+7 / -6	TA3GO	-10 / +5	5	✓ Full exchange observed
10-03 21:03	60m	+4 / +5	Z61DX	-8 / -1	6	✓ Full exchange observed
10-03 21:00	60m	-3 / -	SQ8DSN	- / -10	3	✓ Closing fragment
10-03 20:59	60m	-5 / -12	YO9IE	-4 / -5	5	✓ Full exchange observed
10-03 20:57	60m	-6 / +4	ON8SL	-21 / -14	5	✓ Full exchange observed
10-03 20:55	60m	+1 / -	LB9ZG	- / -8	3	✓ Closing fragment
10-03 20:54	60m	-2 / -	EG1FAP	-13 / -	3	✓ Closing observed
10-03 20:51	60m	+8 / -	IK2EST	-21 / -5	6	✓ Closing observed
10-03 20:49	60m	+6 / -4	EA6LU	-14 / -12	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m

UTC    dB Audio  Message
213245 +17 2453  DC7KM F1PBZ -09
213300 +16 2453  F1PBZ DC7KM R+06
213315 +17 2453  DC7KM F1PBZ RR73
213330 +17 2453  F1PBZ DC7KM 73
213445 +14 1201  SM7TZK DC7KM JO62
213500  +2 1201  DC7KM SM7TZK +03
213515 +14 1201  SM7TZK DC7KM R+03
213530  -1 1201  DC7KM SM7TZK RR73
213545 +13 1201  SM7TZK DC7KM 73
213600  -1 1201  DC7KM SM7TZK 73
213730 +21  885  HB9EXN DC7KM JO62
213745  +3  885  DC7KM HB9EXN +08
213800 +11  885  HB9EXN DC7KM R-04
213815  +3  885  DC7KM HB9EXN RR73 (x2)

60m

UTC    dB Audio  Message
200230  -8 1070  DC7KM F1IQH RR73
200245  -3 1070  F1IQH DC7KM 73
200345  +6  265  F4LSG DC7KM -06 (x2)
202045  +2  627  DC7KM G4DBW -16 (x2)
202130 -11  627  G4DBW DC7KM 73
202230 -11  996  DC7KM IK3FHW -04 (x2)
202445 -20 2235  E74K DC7KM 73
202515 -21 2055  EG46PPA DC7KM JO62
202530 -16 2054  DC7KM EG46PPA +10
204130  +2  335  DC7KM G0ABI +12 (x3)

10m

UTC    dB Audio  Message
205345 -19 2253  DC7KM M0CGL +00
112145 -21 1975  EC1D DC7KM R+09 (x2)
155700  +0  758  DC7KM LX1NO +23 (x2)
162630  -8 1007  DC7KM F6ARS +25 (x2)
172345 -13 1392  DC7KM PD4PG RR73
174145  -5  827  DC7KM GX0ERG +18 (x2)
073545  -4 1567  DC7KM IU8ADS JN70
101800 -17 1612  DC7KM A61FJ -01 (x2)
103015  -6 2786  DC7KM EX8ABQ -21
171030 -10 2683  DC7KM EA7R RR73

40m

UTC    dB Audio  Message
173800  -9  856  PI4TS DC7KM R-03 (x2)
173930  -1  604  EI8HV DC7KM JO62 (x4)
202400  +0  546  DC7KM G5NGL -04
201730  +1 1213  DC7KM MW0USK +06 (x2)
203915 -15  727  TF8KW DC7KM JO62
204330 -20 1343  PV8AJ DC7KM JO62
204530  -3  783  G4BHE DC7KM R+02 (x2)
204730 -14 2029  RZ4FWA DC7KM -15 (x2)

20m

UTC    dB Audio  Message
205630  +0 2310  DC7KM CX6TU +01 (x3)
210015  +4 1227  DC7KM EC3A -12 (x2)
210300 +10 1232  DC7KM EA8UP +03 (x2)
211730 -11 2874  DC7KM G3BAM RR73
160545  -9 1870  OE6HTG DC7KM R+04 (x3)
160745  +8  564  DS2MGT DC7KM R-14 (x4)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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